Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 8319 1176 14% 0.00 1586 777 49% 7.0
10 Kinds of People 18214 3718 20% 0.01 3097 2206 71% 5.0
2048 8127 3778 46% 0.00 3626 3106 86% 2.2
3D Printed Statues 9870 4493 46% 0.00 4119 3685 89% 2.1
3D Printer 724 134 19% 0.00 288 102 35% 8.6
3-Sided Dice 2311 200 9% 0.00 377 139 37% 8.6
4 thought 8437 2838 34% 0.00 2800 2332 83% 2.8
A1 Paper 5191 1507 29% 0.00 1507 1191 79% 3.9
Aaah! 28067 13018 46% 0.00 11657 10865 93% 1.5
Abandoned Animal 1952 425 22% 0.03 484 355 73% 5.0
ABC 13410 6036 45% 0.00 5724 5204 91% 1.9
Ab Initio 1047 192 18% 0.09 155 97 63% 7.4
Above Average 8596 3516 41% 0.00 3467 3110 90% 2.0
A+B Problem 7890 776 10% 0.03 1102 362 33% 8.3
A Brief Gerrymander 208 46 22% 0.15 51 31 61% 8.5
Abstract Art 310 91 29% 0.00 85 65 76% 6.0
Abstract Painting 295 115 39% 0.00 127 99 78% 5.0
Absurdistan Roads II 602 210 35% 0.00 206 140 68% 6.8
Absurdistan Roads III 1531 436 28% 0.02 407 309 76% 5.6
Access Points 408 142 35% 0.01 134 104 78% 5.4
A Classy Problem 9565 2383 25% 0.01 2111 1617 77% 4.5
ACM Contest Scoring 6679 4158 62% 0.00 3683 3474 94% 1.6
Add 'Em Up! 748 222 30% 0.01 220 176 80% 3.9
Adding Words 10579 2497 24% 0.00 2410 1858 77% 3.9
A Different List Game 6819 478 7% 0.00 854 172 20% 9.2
A Different Problem 30012 11060 37% 0.00 10180 8835 87% 2.1
Adjoin the Networks 2000 524 26% 0.00 460 360 78% 5.7
Administrative Difficulties 1178 262 22% 0.03 279 191 68% 6.3
Advanced Causal Measurements 86 34 40% 0.10 29 25 86% 5.2
Adventure Begins 250 82 33% 0.06 87 66 76% 4.4
Adventures in Moving -- Part IV 1290 299 23% 0.00 261 215 82% 4.5
A Favourable Ending 1598 422 26% 0.00 386 298 77% 4.5
A Feast For Cats 2156 773 36% 0.00 521 440 84% 4.1
A Flea on a Chessboard 446 97 22% 0.01 106 77 73% 5.8
Air Conditioned Minions 5000 1388 28% 0.00 1461 1102 75% 3.9
Airline Hub 1780 334 19% 0.01 365 208 57% 6.6
Airport Coffee 867 184 21% 0.09 171 121 71% 7.1
Airport Construction 3429 445 13% 0.02 364 198 54% 7.4
Airport Logistics 67 15 22% 0.00 22 15 68% 7.3
Airports 469 144 31% 0.11 126 91 72% 6.3
Akcija 7356 3260 44% 0.00 2959 2634 89% 2.0
Aladin 761 78 10% 0.10 125 30 24% 8.3
Alchemy 112 16 14% 0.02 31 16 52% 9.1
Alea iacta est 32 13 41% 0.34 17 13 76% 6.9
Alehouse 249 99 40% 0.03 77 58 75% 5.2
Alex and Barb 168 48 29% 0.00 67 45 67% 5.9
Alice in the Digital World 3257 878 27% 0.01 855 669 78% 4.3
Alien Codebreaking 242 14 6% 3.23 42 11 26% 9.2
Alien Numbers 2262 1171 52% 0.00 1147 1041 91% 2.1
A List Game 8140 2387 29% 0.00 2264 1901 84% 3.0
All about that base 2830 1115 39% 0.00 1093 916 84% 3.0
All Different Directions 1314 540 41% 0.00 504 440 87% 2.7
Allergy Test 463 132 29% 0.00 151 78 52% 7.7
All Friends 864 164 19% 0.00 156 79 51% 8.9
All is Well 80 21 26% 0.03 21 19 90% 4.9
All Just A Dream 1919 430 22% 0.05 302 215 71% 6.3
All Kill 17 12 71% 0.01 13 12 92% 4.7
Alloys 180 66 37% 0.00 66 59 89% 4.5
All Pairs Shortest Path 8705 1548 18% 0.00 1069 757 71% 5.6
Almost Perfect 7651 1774 23% 0.00 1890 1483 78% 3.4
Almost Union-Find 6542 1173 18% 0.02 1063 610 57% 6.9
Alphabet 1538 759 49% 0.00 777 652 84% 3.3
Alphabet Animals 1900 592 31% 0.00 588 471 80% 3.4
Alphabet Spam 7878 4894 62% 0.00 4022 3859 96% 1.4
Alternative Bracket Notation 208 88 42% 0.00 94 78 83% 5.1
Altruistic Amphibians 393 103 26% 0.24 99 72 73% 4.9
Amalgamated Artichokes 3959 1764 45% 0.01 1573 1374 87% 2.7
Amanda Lounges 1442 422 29% 0.03 381 306 80% 5.3
A Mazing! 2618 595 23% 0.09 283 214 76% 5.2
Amazing Adventures 368 96 26% 0.02 108 76 70% 6.0
Amazing Race 321 87 27% 0.29 90 64 71% 7.3
Ambiguous Result 264 57 22% 0.02 87 54 62% 8.1
Amsterdam Distance 1487 648 44% 0.00 683 562 82% 2.9
A Multiplication Game 730 247 34% 0.00 281 211 75% 4.7
Anagram Counting 3552 1365 38% 0.00 1324 1105 83% 3.0
Andrew the Ant 341 90 26% 0.06 101 78 77% 3.9
A New Adventure 955 146 15% 0.00 161 107 66% 6.1
A New Alphabet 10813 4824 45% 0.00 4463 4123 92% 1.8
An I for an Eye 730 173 24% 0.00 200 139 70% 5.0
Animal Classification 1566 355 23% 0.03 308 203 66% 6.8
An Industrial Spy 1628 854 52% 0.02 643 550 86% 3.3
Another Brick in the Wall 3245 1606 49% 0.00 1541 1410 91% 1.9
Another Candies 7890 2134 27% 0.00 2213 1828 83% 2.8
Another Coin Weighing Puzzle 279 90 32% 0.01 88 72 82% 5.8
Another Dice Game 98 68 69% 0.00 65 57 88% 4.6
Another Query on Array Problem 1561 216 14% 0.05 332 151 45% 7.5
Antenna Placement 139 64 46% 0.00 44 36 82% 5.2
Anthony and Cora 923 245 27% 0.00 282 202 72% 5.2
Anthony and Diablo 3106 1067 34% 0.00 1066 926 87% 2.3
Antiarithmetic? 1474 269 18% 0.01 331 192 58% 7.2
Ants 3638 1605 44% 0.00 1290 1128 87% 2.5
Apaxiaaaaaaaaaaaans! 12922 7892 61% 0.00 6986 6688 96% 1.4
Apostrophe Catastrophe 107 25 23% 0.00 27 18 67% 6.6
Appalling Architecture 641 182 28% 0.00 159 132 83% 4.1
Apparatus 685 171 25% 0.01 138 103 75% 5.7
Apple Market 470 96 20% 0.07 118 60 51% 8.5
Apples, Cherries, and Mangos 408 123 30% 0.02 128 91 71% 6.6
A Prize No One Can Win 2410 943 39% 0.00 846 739 87% 2.7
Aquarium Tank 508 144 28% 0.00 138 109 79% 4.9
Aqueduct Construction 225 74 33% 0.01 56 48 86% 6.8